Improvement in hoisting and conveying apparatus



* r. A. CLARKSON.

HOIS'IING AND CONVEYING APPARATUS.

Patented Mayl'i, 1877.

ATTORNEYS.

NFETERS, PNDTO-LITHOGRAPHER, WASHINGTON, D C

UNITED STATES PATENT Qrrro FRANCIS A. OLABKSON, OF BLACK BROOK, NEWYORK.

IMPROVEMENT IN HOISTlNG AND CONVEYING APPARATUS.

S pecitioation forming part of Letters Patent No. 190.742, dated May 15,1877; application filed February 26, 1877.

To all whom it may concern Be it known that I, FRANCIS A. OLARKsoN, ofBlack Brook, in the county of Clinton and State of New York, haveinvented a new and useful Improvement in Hoisting and Conveyin gApparatus, of which the following is a specification Figure 1 is a sideview of my improved apparatus, shown as arranged for hoisting andconveying coal, ore, &c. Fig. 2 is an end view of the same. Fig. 3 is aside view of the same, shown as arranged for hoisting and conveyingbarrels, boxes, 8m. Fig. 4 is a detail view of the dumper. Fig. 5 is adetail view, illustrating the mode of lowering the hook to receive theload.

Similar letters of reference indicate correspondin g parts.

The object of this invention is to furnish an improved apparatus forhoisting and conveying coal, casks, and other articles, which shall beso constructed that it may be shifted laterally, as may be required, andwhich shall be simple in construction, strong, durable, convenient inuse, and not liable to get out of order.

The invention consists in the combination of the two timber-bents, ofunequal height, and provided with pulleys at the ends of their top bars,and with windlasses upon their outer posts, the chair, the chairprovided with a pulley, the three shifting-ropes, and the wiretrack-rope, with each other; in the combination of the carriage,provided with the three pulley s, the two pivoted loop-latches, and thesuspended pivoted bail, the hook, provided with the pulley and thepivoted arm, and the hoisting-rope with each other, with the wire track,and with the two catch-hooks; in the combination of the hinged arm andthe dumper with the hook-catch, the carriage, and the bucket in thecombination of the drop-catch and the pivoted catch with the upper andlower arms of the hook-catch, to enable the carriage and bucket to bemanipulated by operating the hoistin g-rope, as hereinafter fullydescribed.

A are two timber-bents, one of which is higher than the other, and whichare securely braced in an erect position.

To each end of each of the top bars of the bents A is pivoted a pulley,B.

Upon the top bar of the lower bent A is placed a chair, G, which is soformed as to hook over the lower part of the outer side of the said topbar, so as to be kept securely in place while being allowed to slidefreely upon said top bar.

To the opposite side edges of the chair 0 are attached the ends of tworopes, D, which pass over the pulley B, pivoted to the ends of the topbar, and their ends are attached to the shafts of two windlasses, E,which are attached to the side posts of the bent, so that by slackingone of said ropes D, and tightening the other, the chair may be movedupon the top bar of the bent, as may be required.

Upon the top bar of the higher bent A is placed a chair, F, similar tothe chair 0, except that it is provided with a rope, D, upon only oneside, which rope is attached to a Windlass, E, in the same manner as theropes D of the other chair (J, and except that it has a pulley, G,pivoted to its top.

H is a wire rope, one end of which is attached to the chair 0. The ropeH passes around the pulley G, pivoted to the chair F, and its other endis attached to the fourth Windlass E, so that it may serve as a fourthrope, D, for shifting the chairs, and also for adjusting its owntension.

The windlasses E are provided with ratchetwheels and pawls to hold theropes D in place when adjusted.

The wire rope H serves as a'track for the carriage I, which may be madein the form of a semicircular case with its middle part notched, asshown in Figs. 1, 2, and 5, or it may be made in the form of a skeletonframe.

To the ends of the upper part of the carriage I are pivoted two groovedrollers, J, which rest and roll upon the wire rope H.

To the lower part of the carriage 1, directly beneath its center ispivoted a grooved pulley, K.

L is the hoisting-rope, one end of which is attached to the carriage Iat the side of the pulley K, toward the higher bent A.

The rope L passes around a pulley, M, pivoted in a recess in the shankof the hook N,

passes over the pulley K, and through the end of the carriage I, towardthe higher bent A, and is attached to the power. The hook N is held inan erect position by its own weight and by the rope L, which passesthrough a hole in its head. The book N is thus kept in proper positionand is kept from turning and fouling the rope L.

The end or head of the hook N is rounded off or inclined, so that as itis raised it may strike, push forward, and catch upon the bend of thebail or loop 0. The arms of the bail 0 pass up upon the opposite sidesof the carriage I, and their ends are pivoted to the overlapping ends ofthe arms of the loop-latches P.

The ends of the loop-latches P have short slots formed in them toreceive the pivoting-bolt, so that the ends of the three loops 0 P P maymove freely upon each other. The bends oftheloop-latches P project atthe opposite ends of the carriage l to catch upon the catcheshereinafter described.

When coal, ore, and similar substances are to be hoisted and moved, abucket, Q, is attached to the lower part of the hook N. The bucket Q ismade with a rigid forked bail, so that it cannot tilt, and with a loosebottom, R, hinged at one edge, and provided with curved arms S near itsforward corners, which pass through keepers T formed upon or attached tothe sides of the bucket Q, to prevent the bottom from opening too far,and to guide it into the right position when being closed.

The bottom of the bucket Q is held in place when closed by catching uponthe shoulders or catches formed upon the forked lower end of the leverU, pivoted to the front of the bucket Q, and held in position by aspring, V, attached to the said front. so as to press the upper arm ofsaid lever U outward.

To the wire-rope track H, toward the higher bent A, and directly overthe place whence the substance is to be moved, is clamped a hook-catch,W. As the hoisting-rope L is drawn upon, the carriage I moves along therope-track H until the forward end of said carriage strikes against theend of the upper arm of the hook-catch W. As the hoistingrope L isfurther drawn upon, it raises the hook N from the bail O, which allowsthe outer end or loop of the loop-latch P to drop and engage with thehook-catch W. When the hook N has been raised so high as to raise thehinged arm X above the bend of the bail O, the hoisting-rope L isslackened, which allows the hook N to descend.

As the bottom R of the bucket Q comes in contact with the ground, it isclosed and latched by the weight of the descending bucket, and the saidbucket is ready to receive its load. The hinged arm X is made of such alength that when turned up it will close the mouth of the hook N, andrest upon its end, as shown in Fig. 5.

As the load is raised by drawing upon the hoisting'rope L the hook risesabove the bend of the bail 0, so that, when the rope L is slackened, itwill rest upon the said bail 0. As the weight comes upon the bail 0 itraises the loop-latch P, which releases the carriage I, and allows it torun down the wire-rope track H to the place where the load is to bedischarged.

To the wire-track H, over the place where the load is to be deposited,is clamped a hook, Y, to the upper arm of which is hinged an arm, Z,which may be turned down forward to lie upon the wire-track H for thecarriage I to strike against and be stopped.

To the lower arm of the hook Y is bolted a downwardly projecting arm, A,which is strengthened by a brace, B, and has a plate, 0, attached to itslower end. I

The device A B 0 is made of such alength that, as the carriage I strikesthe end of the hinged arm Z, the plate 0 will strike the upper end ofthe lever-catch U, and operate it to drop the bottom R of the bucket Q,and discharge the load, and the device is drawn back for another load.

When the substance to be handled is of such a kind as not to require thebucket Q, the said bucket is detached from the hook N, the dumper A B Ois detached from the hook Y, and the arm Z is turned back out of theway. In this case the grapnel rope or chain that secures the load ishung upon a hook formed upon the lower end of the hook N.

In a slot in the upper arm of the hook Y is pivoted a catch, D, whichdrops by its own weight. In a slot in the lower arm of the hook Y, and alittle in front of the catch D, is pivoted a bent lever, E, in such away that its upper part that serves as a catch can swing forward only toa vertical position, but can swing backward into an inclined position,so that the loop-latch P can readily pass it.

The lower end of the levercatch E is weighted, so that when left free itwill always stand with its upper end or catch inclined outward, or fromthe carriage, as shown in Figs. 1 and 3.

With this arrangement, when the carriage I is released from thehook-catch W, and runs down the wire-rope track H, the looplatch Penters the hook Y, passes the catch E, and raises and passes thedrop-catch D, which drops into its loop,and thus locks the carriage. Thehoisting-rope L is then tightened and the hook N raised until the arm Xpasses above the bend of the bail O, and is then slackened to lower thehook N and its load to the ground. As the tightening of the rope Lraises the hook N from the bail 0 the loop-latch P drops from thedrop-catch D, but is caught and held by the lever-catch E. When the loadhas been detached the rope L is tightened, and the hook N is raised andhooked upon the bail O, the rope L being slackened momentarily to letthe weight of the hooks N come upon the bail O, which y with windlassesE upon their outer posts, the

chair 0, the chair F, provided with a pulley, G, the threeshifting-ropes D and the wiretrack rope H with each other, substantiallyas herein shown and described.

2. The combination of the carriage I, provided with the pulleys I J K,the pivoted loop-latches P P, and the suspended pivoted bail O, the hookN, provided with the pulley M, and the pivoted arm X, and thehoistingrope L with each other, with the wire-track H, and with thecatch-hooks W Y, substantially as herein shown and described.

3. The combination of the hinged arm Z and the dumper A B O with thehook-catch Y, the carriage I, and the bucket Q, substantially as hereinshown and described.

4. The combination of the drop-catch D and the pivoted catch E with theupper and lower arms of the hook-catch Y, to enable the carriage andbucket to be manipulated by operating the hoisting-rope L, substantiallyas herein shown and described.

FRANCIS-A. GLARKSON.

Witnesses:

H. W. STETSON, J. H. BULLEN.

